(7.3.z) Increase the test coverage of LayersTestCase for the all layers case

The LayersTestCase verifies the following:

• Verifies the provisioned modules are the expected ones.
• Verifies the provisioned server starts successfully.

Currently, we have a server provision under test that doesn't add all the layers, the idea of this task is to supply one server provisioning including all the available layers.

The WildFly Galleon Layers have an inheritance structure where some layers already include others, instead of check what is already included, the idea on this task is to include all, even if they are already included by another one, Galleon will take care of merging them. In the future, when a new layer is added, we have to add to this all-in-one provision.

The idea is to have one all-in-one provision for jpa and all-in-one provision for jpa-distribute. The similar task could be done if we detect additional mutually excludable layers.